1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kogti [31]
3 years ago
13

Olga tried to solve an equation step by step

Mathematics
2 answers:
Bess [88]3 years ago
6 0

Answer:

step 3

Step-by-step explanation:

she should have multiplied 15 x 3=45

k=45

LuckyWell [14K]3 years ago
3 0

Answer:

made a mistake in step 3

Step-by-step explanation:

from step2; 1/3k=15 then making k the subject ,k=15*3 so the value of k will be 45

You might be interested in
You want to buy an MP3 player. Your Aunt paid you $20 to mow her lawn and you earn $5 each week
natka813 [3]

Answer:

1. y = 5x + 20

2. $20 the amount you saved mowing your aunt's lawn.

3. 21 weeks

Step-by-step explanation:

1. 5 is the slope because it is the rate. 20 is the y-intercept because that is how much you already have.

2. 20 because that is how much you already have.

3. Since you already have $20, you need to subtract 125 by 20 to get 105. Then you divide 105 by 5 to get 21 weeks.

6 0
3 years ago
Read 2 more answers
A, b, c, and d please
DIA [1.3K]
<h2>Answers / Step-by-step explanation:</h2><h3>a. What is the length of one side of the square.</h3>

<em>Looking at the image, the radius (r) of the circle appears to cover half of the length of a side of the square. Hence, the side of the square has a length of </em><em>2r</em><em>.</em>

<em />

<u><em>-------------------------------------------------------------------------------------------------------</em></u>

<em />

<h3>b. The formula A= πr² is used to find the area of a circle. The formula A=4r² can be used to find the area of the square. Write the ratio of the area of the circle to the area of the square in the simplest form.</h3>

<em />Ratio=\frac{\pi r^{2} }{4r^2} =\frac{\pi}{4}.

<em>Notice that the value "r²" disappears from the expression because is being multiplied and divided by it at the same time.</em>

<em />

Ratio=\frac{4\pi }{16} =0.7854.

<em />

<u><em>-------------------------------------------------------------------------------------------------------</em></u>

<em />

c. Complete the table.

<em>To complete each cell of the table, simply take the equation of the asked parameter and substitute the value of r by the number indicated in the title of the column. For example, column 3 should be filled out like this:</em>

Area of Circle (units²): π(3)²or 9π.

Length of 1 Side of the Square: 2r= 2(3)= 6.

Area of Square (units²)= 4r²= 4(3)²= 36.

Ratio: \frac{\pi}{4}.

<em>Do the same for all the other columns. </em>

<em>The answers to the table are presented on the attached image</em><em>.</em>

<em />

<u><em>-------------------------------------------------------------------------------------------------------</em></u>

<em />

d. What can you conclude about the relationship between the area of the circle and the square?

<em>They will always have the same value, π/4, regardless of the size of the square and circle. As long as the circle borders meet the square's at the middle of each side of the square, the relationship will be the same</em><em>.</em>

4 0
2 years ago
What is exact value of cos7pi/6
victus00 [196]
0.523598775598299 lol I believe
7 0
3 years ago
Help I need help with this one
andrey2020 [161]
THE CORRECT ANSWER IS D 1/6
8 0
3 years ago
Can someone answer this questions please answer it correctly if it’s correct I will mark you brainliest
muminat

Answer:

c

Step-by-step explanation:

0.1=1/10

1/10 is just the fraction form of 0.1

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which function has a simplified base of 4? f(x) = 2 f(x) = 2 f(x) = 4 f(x) = 4
    14·2 answers
  • ABCD is a rectangle. Find the measure of angle CAD
    8·2 answers
  • Four years after opening an account that paid simple interest of 4.25% annually, a depositor withdrew the $2,380 in interest ear
    9·1 answer
  • The answer to this question
    12·1 answer
  • a biologist wants to determine the effect of a new fertilizer on tomato plants. what would be the control
    7·2 answers
  • What percent of the dollar did Quentin find
    12·1 answer
  • Write the equation y= -1/3x -5 in standard form.
    14·1 answer
  • Which of the following is a horizontal line?
    11·2 answers
  • HELP PLEASE ANYONE!!!
    10·1 answer
  • Can you help me please
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!